Could you post a screen shot to illustrate this wish?
Could you post a scenario where the current solution is inadequate in your opinion.
This would make it easier for people to decide whether to support this wish or not.
By the way:
if you press the ALT+X key combination on your keyboard, the cursor becomes locked to a vertical line (X coordinate locked).
If you press the ALT+Y key combination on your keyboard, the cursor becomes locked to a horizontal line (Y coordinate locked).
Another ALT+X or ALT+Y, respectively, unlocks it.
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